Adding DVD system to Bose audio system 08 Sierra Denali

I just purchased a 2008 GMC Sierra Denali. I have to Bose premium audio system, but it doesn't have the dvd system in the back. What would be the best system that would still work the the Bose system? Looking for a flip down one.

Sorry just realized I posted this in the wrong forum. Maybe if a admin could move it for me...thanks

There are a few Co's like PAC that make Aux inputs for your radio Some also add HD to your radio with the input or Ipod control, As for Drop downs.. So many out there.. Do you have a sunroof? You can also get Headrest screens...